Dentist&#39;s mirror



1951 s. F. LUNDGREN ET AL 2,574,217

DENTISTS MIRROR Filed May 6, 1950 Patented Nov. 6, 1951 Stanley F.Lundgren, Minneapolis, and Robert A. Olsen, Excelsior, Minn.; said Olsenassignor to said Lundgren Application May 6, 1950, Serial No. 160,444

4 Claims. 1 V

This invention relates generally to dental mir rors.

It is an object of our invention to provide a novel and improved dentalmirror designed to protect the reflective surface and producing an 5 H1.The outer periphery of said mirror element ingeniously constructedmirror clamping bracket is bevelled, as illustrated in thedrawings, andwhich securely holds the mirror in position, while the flanges 9a andIla are formed to closely permitting easy removal thereof. embrace theengaged portions of this bevelled It is another object to provide adental mirror peripheral surface. The clamp II has an elonhaving a pairof light reflecting protective wings 10 gated slot llb formed thereinand, a clamping extending outwardly from the centrally disposed screw I2is inserted through the central portion reflective surface andconstructed to define a of the rear of the socket member 9 and extendsdefinite operative area and facilitating maintainthrough the elongatedslot Ilb. A nut 12a is ing said area in a dry optimum condition.threadably mounted on the inside of said screw, More specifically, it isan object to provide l5 .l2, and is prevented from turning by thestruckup a dental mirror having an image reflecting surears 0. I 1 Iface with a concave bottom portion and a pair The mirror element [0 iseasily removed by of laterally extending dished light reflective wingloosening the screw I 2 to permit the clamp ll membersadapted to definea definite operative to be shifted downwardly and thereby permit areaand to focus the light substantially umthe withdrawal of the mirror fromthe socket. formly over said area, while permitting optimum To reinsertthe mirror into the socket the same is positioning of the imagereflecting surface. s ed u e t retaining ge 9a and the These and otherobjects and advantages of our flange I o e clamp H is Shifted p yinvention will more fully appear from the followto ngage the lowerrecess and held in clamping ing description made in connection t theposition while the screw I2 is tightened. It has companying drawingswherein like reference been found that the image reflecting surface ofcharacters refer to similar parts throughout the these dental mirrors,with repeated il z ti n, several views and in which: become damaged andrequire replacement, and Fig. 1 is a perspective view of my assembledtherefore it is a decided advantage to provide a dental mirror;replaceable mirror element to obviate the neces- Fig. 2 is a frontelevational view of the mirror sity f pl c n the en ire mo nting r reholding structure showing the mirror in dotted to replace the imagereflecting mirror element lines; itself. The mirror also often becomesdamaged Fig. 8 is a vertical sectional view taken suband scratchedthrough contact with the rotary stantially along the line 3-3 of Fig. 2;and sanding disc used in dental work and requires Fig. 4 is aperspective view showing the mirror p m ntretaining bracket, The entiremirror holding portion 6 of our im- As illustrated in the accompanyingdrawings proved dental mirror is constructed to define a w provide adental mirror havin h dl 5 definite operative area which is protectedfrom removably connected with th mirror holding contact with the mouthmembranes and which portion designated as an entirety by the numeralreceives a uniformly distributed relatively high 6, The mirror holdinrti 6 h a pair of intensity light which is focused thereon by theinwardly dished protective wing members 1 and light reflective Wingmembers 7 and 8. These 8 and a central mirror mounting socket 9. The e mm r en e th ti sue of the mouth on inner dished surfac of these wingmembers are each side of the operative area and displace the highlypolished to reflect the light onto the opera- Same laterally ay fromsaid area and downtive area disposed therebetween. The upper porwardlytherefrom to provide an increased saliva tion of the mounting socket 9has an overhanging reservoir on each side thereof to permit theenretaining flange 9a extending around the upper tire operative area tobe maintained in a dry portion thereof. optimum condition while thedentist is working An image reflecting mirror element ill has a thereon.This mirror unit, of course, produces circular upper portion to bereceived under the all of these advantages simultaneously andmateoverhanging retaining flange 9a andhas a conrially increases theefficiency of any work being cavely formed recess in the bottom thereof.A performed. The recess in the lower portion of mirror retaining clampII is slidably mounted the mirror permits optimum positioning thereofwithin the mounting socket 9 and has an upwardly convexly curvedretaining flange Ila formed at the bottom-thereof to cooperatively,

receive the concave recess of the mirror element 3 and accuratelyreflects the image of the entire operative area. The concavely dishedwingmembers provide not only a focusing of the light on the operativearea, but also provide additional clearace of the sanding disc which isusually disposed in upright position therebetween and which, of course,is circular in shape. The recess in the lower portionofr'the imagereflecting minror element'lll' also serves to permit the'mirror to beeasily locked into the socket 9 by the clamp It will be seen that wehave provided mrelav;

tively simple, yet highly efficient dental mirror unit adapted to definea definite operative area and to maintain optimum iight'oondition's as'well as maintaining the area in a relatively dry in, u.

leasably securing said clamping element in mirg-fmn'c amping position,and a handle connected to state. The mirror element itselffisieasilyireeplaceable and when in assembled position is securely lockedtherein against rotation or any" other shifting movement.

It will, of course, understood that various' changes maybe made in theform, details, arrangement andproportions'of the parts witho'utdeparting from the scope of our'invention.

What W's-claim is:

1. A dental mirror unit comprising a central reflective mirror element,apair of wing members respectively fixed at the 'sidesof said mirrorelement and extending rearwardly therefrom, the

bottom portion of saidmirror element being concavely recessedtofacilitate optimum positioning-thereof within a patients mouth andpermit easy protective positioning of saidwing members on each side-ofthe row of teeth being examined, and a handle fixed boom of said wingmembers and extending rearwardly therefrom.

2. A dental mirror unit eomprisingya central socket member, an inwardlyextending] retaining flange formed around at least a portion of "the.

periphery of said socket member and adapted to.

. said socket member. Y The;sti ucture.setforth in claim 2 andcontaveperipheral recesses respectively formed at the lowerpdftibns ofsaid socket member and H-mIrmn' eiementwith the flange of said clampingmember being curved convexly upwardly to be tightly clamped and receivedin said cooperating recesses. I

4. Thest'ructure set forth in claim 3 and a pair of protective wingmembers fixed to said socket and extending rearwardly thereof, one'ofsaid wing members interconnecting said handle and said socket member.

' STANLEY F. LUNDGREN.

ROBERT A. OLSEN.

REFERENCES CITED The following referencesare-of record in the,

file of this patent:

UNITED STATES PATENTS Number Name Date 548,817 Platt Oct. 29, 1895893,293 Wright et al July 14, 1908 FOREIGN PATENTS Number Country Date-Switzerland Sept. 17, 1923

